Doxygen inline math/LaTeX is broken
E.g. here: https://beta.dune-project.org/doxygen/2.4.1/classDune_1_1IndexSet.html. Both in Iceweasel 38.8.0 and chromium "Version 50.0.2661.94 Built on 8.4, running on Debian 8.4 (64-bit)"
It look like the .png's simply were not installed, e.g. when trying to open them manually I get a 404.